Condensed Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Revenues
Electric	$ 2,772	$ 2,617
Natural gas	869	980
Total operating revenues	3,641	3,597
Operating Expenses
Cost of electricity	859	888
Cost of natural gas	343	508
Operating and maintenance	1,368	1,226
Depreciation, amortization, and decommissioning	584	491
Total operating expenses	3,154	3,113
Operating Income	487	484
Interest income	1	2
Interest expense	(174)	(177)
Other income, net	26	17
Income Before Income Taxes	340	326
Income tax provision	104	124
Net Income	236	202
Preferred stock dividend requirement of subsidiary	3	3
Income Available for Common Shareholders	233	199
Weighted Average Common Shares Outstanding, Basic	414	396
Weighted Average Common Shares Outstanding, Diluted	416	397
Net Earnings Per Common Share, Basic	$ 0.56	$ 0.50
Net Earnings Per Common Share, Diluted	$ 0.56	$ 0.50
Dividends Declared Per Common Share	$ 0.46	$ 0.46
Pacific Gas And Electric Company [Member]
Operating Revenues
Electric	2,771	2,616
Natural gas	869	980
Total operating revenues	3,640	3,596
Operating Expenses
Cost of electricity	859	888
Cost of natural gas	343	508
Operating and maintenance	1,366	1,226
Depreciation, amortization, and decommissioning	584	490
Total operating expenses	3,152	3,112
Operating Income	488	484
Interest income	1	2
Interest expense	(168)	(171)
Other income, net	23	17
Income Before Income Taxes	344	332
Income tax provision	113	131
Net Income	231	201
Preferred stock dividend requirement	3	3
Income Available for Common Shareholders	$ 228	$ 198